130121591 has 2 divisors, whose sum is σ = 130121592. Its totient is φ = 130121590.

The previous prime is 130121543. The next prime is 130121627. The reversal of 130121591 is 195121031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130121591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130121501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65060795 + 65060796.

It is an arithmetic number, because the mean of its divisors is an integer number (65060796).

Almost surely, 2^130121591 is an apocalyptic number.

130121591 is a deficient number, since it is larger than the sum of its proper divisors (1).

130121591 is an equidigital number, since it uses as much as digits as its factorization.

130121591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 23.

The square root of 130121591 is about 11407.0851228524. The cubic root of 130121591 is about 506.7375899582.

The spelling of 130121591 in words is "one hundred thirty million, one hundred twenty-one thousand, five hundred ninety-one".